24FC04HT-E/OT

Memory IC Overview

The Microchip Technology 24FC04HT-E/OT is a 4-Kbit (512 x 8) I2C serial EEPROM housed in a 5-lead SOT-23 package. It operates on a single supply voltage ranging from 1.7V to 5.5V with a maximum clock frequency of 1 MHz. The device supports page writes up to 16 bytes and features hardware write protection for the upper half of the memory array (addresses 100h-1FFh). It offers extended temperature operation from -40°C to +125°C, data retention exceeding 200 years, and over one million erase/write cycles.

Memory IC Feature Summary

• Hardware write protection for the upper half of the memory array via the WP pin
• Low-power CMOS technology with standby current as low as 1 µA
• Schmitt trigger inputs and output slope control for noise suppression and ground bounce elimination
• Self-timed erase/write cycle with automatic acknowledge polling capability

Memory IC Applications

• Data logging in industrial environments requiring extended temperature stability
• Configuration storage in consumer electronics operating at low voltages
• Parameter retention in automotive systems meeting AEC-Q100 standards
• Embedded system non-volatile memory for small data sets

Memory IC Procurement Notes

Verify the specific ordering suffix matches the required temperature grade and package type. Confirm that the 'H' designation indicates the half-array write-protect feature. Ensure compatibility with the host controller's I2C voltage levels and pull-up resistor requirements. Check for RoHS compliance documentation if environmental regulations apply to the final assembly.

Memory IC Selection Notes

Select this component when a compact SOT-23 footprint is necessary alongside high-speed 1 MHz I2C communication. It is suitable for designs requiring hardware-based protection for critical data segments without software overhead. Consider the extended temperature range if the application environment exceeds standard industrial limits. Verify that the 4-Kbit capacity aligns with the specific data storage requirements of the system.

Memory IC Part Context

This part belongs to the 24XX04H family of serial EEPROMs, which includes variants like the 24AA04H and 24LC04BH. The 24FC04H series is distinguished by its support for higher clock frequencies up to 1 MHz compared to other family members limited to 400 kHz. The 'T' suffix denotes tape and reel packaging, while 'E' specifies the extended temperature range.

Memory IC Replacement Considerations

Direct replacements within the same family include the 24FC04HT-I/MUY for UDFN packages or other 24FC04H variants in different packages such as MSOP or SOIC. Cross-family substitution with 24LC04BH requires verification of the lower 400 kHz speed limit and 2.5V minimum voltage constraint.